| | 1 | = CMake Macro Reference: `boost_add_executable` = |
| | 2 | |
| | 3 | Creates a new executable from source files. |
| | 4 | |
| | 5 | {{{ |
| | 6 | boost_add_executable(exename |
| | 7 | source1 source2 ... |
| | 8 | [COMPILE_FLAGS compileflags] |
| | 9 | [feature_COMPILE_FLAGS compileflags] |
| | 10 | [LINK_FLAGS linkflags] |
| | 11 | [feature_LINK_FLAGS linkflags] |
| | 12 | [LINK_LIBS linklibs] |
| | 13 | [feature_LINK_LIBS linklibs] |
| | 14 | [DEPENDS libdepend1 libdepend2 ...] |
| | 15 | [feature] |
| | 16 | [NO_INSTALL]) |
| | 17 | }}} |
| | 18 | |
| | 19 | where {{{exename}}} is the name of the executable (e.g., "wave"). {{{source1}}}, |
| | 20 | {{{source2}}}, etc. are the source files used to build the executable, e.g., |
| | 21 | cpp.cpp. If no source files are provided, "{{{exename.cpp}}}" will be |
| | 22 | used. |
| | 23 | |
| | 24 | This macro has a variety of options that affect its behavior. In |
| | 25 | several cases, we use the placeholder "feature" in the option name to |
| | 26 | indicate that there are actually several different kinds of options, |
| | 27 | each referring to a different build feature, e.g., shared libraries, |
| | 28 | multi-threaded, debug build, etc. For a complete listing of these |
| | 29 | features, please refer to the page on [wiki:CMakeBuildFeatures CMake |
| | 30 | Build Features]. |
| | 31 | |
| | 32 | The options that affect this macro's behavior are: |
| | 33 | |
| | 34 | COMPILE_FLAGS:: |
| | 35 | Provides additional compilation flags that will be |
| | 36 | used when building the executable. |
| | 37 | |
| | 38 | feature_COMPILE_FLAGS:: |
| | 39 | Provides additional compilation flags that |
| | 40 | will be used only when building the executable with the given |
| | 41 | feature (e.g., {{{SHARED_COMPILE_FLAGS}}} when we're linking against |
| | 42 | shared libraries). Note that the set of features used to build the |
| | 43 | executable depends both on the arguments given to |
| | 44 | {{{boost_add_executable}}} (see the "feature" argument description, |
| | 45 | below) and on the user's choice of variants to build. |
| | 46 | |
| | 47 | LINK_FLAGS:: |
| | 48 | Provides additional flags that will be passed to the |
| | 49 | linker when linking the executable. This option should not be used |
| | 50 | to link in additional libraries; see {{{LINK_LIBS}}} and {{{DEPENDS}}}. |
| | 51 | |
| | 52 | feature_LINK_FLAGS:: |
| | 53 | Provides additional flags that will be passed |
| | 54 | to the linker when linking the executable with the given feature |
| | 55 | (e.g., {{{MULTI_THREADED_LINK_FLAGS}}} when we're linking a |
| | 56 | multi-threaded executable). |
| | 57 | |
| | 58 | LINK_LIBS:: |
| | 59 | Provides additional libraries against which the |
| | 60 | executable will be linked. For example, one might provide "expat" |
| | 61 | as options to LINK_LIBS, to state that the executable will link |
| | 62 | against the expat library binary. Use LINK_LIBS for libraries |
| | 63 | external to Boost; for Boost libraries, use DEPENDS. |
| | 64 | |
| | 65 | feature_LINK_LIBS:: |
| | 66 | Provides additional libraries to link against |
| | 67 | when linking an executable built with the given feature. |
| | 68 | |
| | 69 | DEPENDS:: |
| | 70 | States that this executable depends on and links against |
| | 71 | a Boostlibrary. The arguments to DEPENDS should be the unversioned |
| | 72 | name of the Boost library, such as "boost_filesystem". Like |
| | 73 | LINK_LIBS, this option states that the executable will link |
| | 74 | against the stated libraries. Unlike LINK_LIBS, however, DEPENDS |
| | 75 | takes particular library variants into account, always linking to |
| | 76 | the appropriate variant of a Boost library. For example, if the |
| | 77 | {{{MULTI_THREADED}}} feature was requested in the call to |
| | 78 | boost_add_executable, DEPENDS will ensure that we only link |
| | 79 | against multi-threaded libraries. |
| | 80 | |
| | 81 | feature:: |
| | 82 | States that the executable should always be built using a |
| | 83 | given feature, e.g., SHARED linking (against its libraries) or |
| | 84 | MULTI_THREADED (for multi-threaded builds). If that feature has |
| | 85 | been turned off by the user, the executable will not build. |
| | 86 | |
| | 87 | NO_INSTALL:: |
| | 88 | Don't install this executable with the rest of Boost. |
| | 89 | |
| | 90 | OUTPUT_NAME:: |
| | 91 | If you want the executable to be generated somewhere |
| | 92 | other than the binary directory, pass the path (including |
| | 93 | directory and file name) via the OUTPUT_NAME parameter. |
| | 94 | |
| | 95 | == Example == |
| | 96 | |
| | 97 | The Boost.Wave library also includes the {{{wave}}} tool, which |
| | 98 | provides a complete C89/C99/C++ preprocessor. It uses the Wave, |
| | 99 | Program Options, Filesystem, and Serialization libraries in Boost and |
| | 100 | is built with the following invocation of {{{boost_add_executable}}}: |
| | 101 | |
| | 102 | {{{ |
| | 103 | boost_add_executable(wave cpp.cpp |
| | 104 | DEPENDS boost_wave boost_program_options boost_filesystem boost_serialization |
| | 105 | ) |
| | 106 | }}} |
| | 107 | |
| | 108 | This example is from [http://svn.boost.org/svn/boost/sandbox-branches/boost-cmake/boost_1_34_0/tools/wave/CMakeLists.txt tools/wave/CMakeLists.txt]. |
| | 109 | |
| | 110 | == Where Defined == |
| | 111 | This macro is defined in the Boost Core module in [http://svn.boost.org/svn/boost/sandbox-branches/boost-cmake/boost_1_34_0/tools/build/CMake/BoostCore.cmake tools/build/CMake/BoostCore.cmake] |